diff --git a/README.md b/README.md
index 1d7f210..03d32cd 100644
--- a/README.md
+++ b/README.md
@@ -117,8 +117,6 @@ the following will be sent under these conditions:
 
 Optional:
 
--	`channel`: *Optional.* Override channel to send message to. `#channel` and `@user` forms are allowed. You can notify multiple channels separated by whitespace, like `#channel @user`.
-- `channel_file`: *Optional.* File that contains a list of channels to send message to. If `channel` is also specified, the two lists will be concatenated.
 - `env_file`: *Optional.* File that contains a list of `key=value` environment variables that will be available in your slack messages template
 -	`username`: *Optional.* Override name of the sender of the message.
 -	`icon_url`: *Optional.* Override icon by providing URL to the image.
@@ -141,7 +139,6 @@ jobs:
   plan:
   - put: slack-alert
     params:
-      channel: '#my_channel'
       text_file: results/message.txt
       text: |
         The build had a result. Check it out at:
@@ -168,8 +165,7 @@ body: {
   "text": ":some_emoji:<https://my-ci.my-org.com//teams//main//pipelines//jobs//builds/|Alert!>\n",
   "username": "concourse",
   "icon_url": null,
-  "icon_emoji": null,
-  "channel": null
+  "icon_emoji": null
 }
 
 > cat test/combined_text_template_and_file_missing.out | ./out .
@@ -178,8 +174,7 @@ body: {
   "text": ":some_emoji:<https://my-ci.my-org.com//teams//main//pipelines//jobs//builds/|Alert!>\n_(no notification provided)_\n",
   "username": "concourse",
   "icon_url": null,
-  "icon_emoji": null,
-  "channel": null
+  "icon_emoji": null
 }
 
 > cat test/combined_text_template_and_file.out | ./out .
@@ -188,8 +183,7 @@ body: {
   "text": ":some_emoji:<https://my-ci.my-org.com//teams//main//pipelines//jobs//builds/|Alert!>\nThis text came from sample.txt. It could have been generated by a previous Concourse task.\n\nMultiple lines are allowed.\n",
   "username": "concourse",
   "icon_url": null,
-  "icon_emoji": null,
-  "channel": null
+  "icon_emoji": null
 }
 
 > cat test/text_file_empty.out | ./out .
@@ -198,8 +192,7 @@ body: {
   "text": "_(missing notification text)_\n",
   "username": "concourse",
   "icon_url": null,
-  "icon_emoji": null,
-  "channel": null
+  "icon_emoji": null
 }
 
 > cat test/text_file.out | ./out .
@@ -208,8 +201,7 @@ body: {
   "text": "This text came from sample.txt. It could have been generated by a previous Concourse task.\n\nMultiple lines are allowed.\n",
   "username": "concourse",
   "icon_url": null,
-  "icon_emoji": null,
-  "channel": null
+  "icon_emoji": null
 }
 
 > cat test/text.out | ./out .
@@ -218,8 +210,7 @@ body: {
   "text": "Inline static text\n",
   "username": "concourse",
   "icon_url": null,
-  "icon_emoji": null,
-  "channel": null
+  "icon_emoji": null
 }
 
 ```
diff --git a/ci/pipeline.yml b/ci/pipeline.yml
index fdb790b..8773251 100644
--- a/ci/pipeline.yml
+++ b/ci/pipeline.yml
@@ -42,7 +42,6 @@ meta:
   slack:
     webhook:       (( param "Please specify your Slack Incoming Webhook Integration URL" ))
     notification: '(( concat ":concourse-fail: <" meta.url "/teams/$BUILD_TEAM_NAME/pipelines/$BUILD_PIPELINE_NAME/jobs/$BUILD_JOB_NAME/builds/$BUILD_NAME| Failed to build " meta.name "!  Click for details.>" ))'
-    channel:       (( param "Please specify the channel (#name) or user (@user) to send messages to" ))
     username:      concourse
     icon:          http://cl.ly/image/3e1h0H3H2s0P/concourse-logo.png
 
@@ -66,7 +65,6 @@ jobs:
         on_failure:
           put: notify
           params:
-            channel:  (( grab meta.slack.channel ))
             username: (( grab meta.slack.username ))
             icon_url: (( grab meta.slack.icon ))
             text:     (( grab meta.slack.notification ))
diff --git a/ci/settings.yml b/ci/settings.yml
index 685313e..fb288e8 100644
--- a/ci/settings.yml
+++ b/ci/settings.yml
@@ -25,4 +25,3 @@ meta:
 
   slack:
     webhook: (( vault "secret/pipelines/slack-notification-resource/slack:webhook" ))
-    channel: '#botspam'
diff --git a/out b/out
index 205699a..f561904 100755
--- a/out
+++ b/out
@@ -34,8 +34,6 @@ icon_url="$(jq '(.params.icon_url // null)' < "${payload}")"
 icon_emoji="$(jq '(.params.icon_emoji // null)' < "${payload}")"
 link_names="$(jq -r '(.params.link_names // false)' < "${payload}")"
 
-channels="$(jq -r '(.params.channel // null)' < "${payload}")"
-channel_file="$(jq -r '(.params.channel_file // null)' < "${payload}")"
 attachments_file="$(jq -r '.params.attachments_file // ""' < "${payload}")"
 attachments=$(jq -r '(.params.attachments // null)' < $payload)
 
@@ -82,11 +80,6 @@ fi
 
 attachments=$(echo "$attachments" | envsubst)
 
-[[ -n "${channel_file}" && -f "${channel_file}" ]] && channels="${channels} $(cat "${channel_file}")"
-
-for channel in ${channels}
-do
-
 debug_info=""
 metadata=""
 body=""
@@ -127,7 +120,6 @@ then
   [[ "${username}"   != "null" ]] && username="$(eval "printf ${username}" | jq -R -s .)"
   [[ "${icon_url}"   != "null" ]] && icon_url="$(eval "printf ${icon_url}" | jq -R -s .)"
   [[ "${icon_emoji}" != "null" ]] && icon_emoji="$(eval "printf ${icon_emoji}" | jq -R -s .)"
-  [[ "${channel}"    != "null" ]] && channel=\"${channel}\" && channel="$(eval "printf ${channel}" | jq -R -s .)"
 
   body="$(cat <<EOF
 {
@@ -136,7 +128,6 @@ then
   "link_names": ${link_names},
   "icon_url": ${icon_url},
   "icon_emoji": ${icon_emoji},
-  "channel": ${channel},
   "attachments": ${attachments}
 }
 EOF
@@ -175,7 +166,6 @@ else
   text_interplated="$(echo "" | jq -R -s .)"
 fi
 
-done
 
 if [[ "$show_metadata" == "true" ]]
 then
@@ -194,7 +184,6 @@ then
 {
   "metadata": [
     {"name": "url",               "value": ${redacted_webhook_url}},
-    {"name": "channel",           "value": "${channels}"          },
     {"name": "username",          "value": ${username}            },
     {"name": "text",              "value": ${text_interpolated}   },
     {"name": "text_file",         "value": $( echo "$text_file"         | jq -R . ) },
diff --git a/test/all.sh b/test/all.sh
index d1414d2..6a5f61b 100755
--- a/test/all.sh
+++ b/test/all.sh
@@ -20,7 +20,7 @@ test() {
     cmd="/opt/resource/out"
   fi
 
-  cat <<EOM >&2
+  cat <<EOF >&2
 ------------------------------------------------------------------------------
 TESTING: $1
 
@@ -28,11 +28,13 @@ Input:
 $(cat ${base_dir}/${1}.out)
 
 Output:
-EOM
+EOF
 
   result="$(cd $base_dir && cat ${1}.out | $cmd . 2>&1 | tee /dev/stderr)"
-  echo >&2 ""
-  echo >&2 "Result:"
+  cat <<EOF >&2
+
+Result:
+EOF
   echo "$result" # to be passed into jq -e
 }
 
@@ -50,77 +52,71 @@ username="concourse"
 
 test combined_text_template_and_file | jq -e "
   .webhook_url == $(echo $webhook_url | jq -R .) and
-  .body.channel == null and
   .body.icon_url == null and
   .body.icon_emoji == null and
   .body.link_names == false and
   .body.username == $(echo $username | jq -R .) and
   .body.text == \"${base_text}\n${sample_text}\" and
   .body.attachments == null and
-  ( .body | keys | contains([\"channel\",\"icon_emoji\",\"icon_url\",\"username\",\"link_names\",\"text\",\"attachments\"]) ) and
-  ( .body | keys | length ==  7 )"
+  ( .body | keys | contains([\"icon_emoji\",\"icon_url\",\"username\",\"link_names\",\"text\",\"attachments\"]) ) and
+  ( .body | keys | length ==  6 )"
 
 
 test combined_text_template_and_file_empty | jq -e "
   .webhook_url == $(echo $webhook_url | jq -R .) and
-  .body.channel == null and
   .body.icon_url == null and
   .body.icon_emoji == null and
   .body.link_names == false and
   .body.username == $(echo $username | jq -R .) and
   .body.text == \"${base_text}\n${missing_text}\n\" and
   .body.attachments == null and
-  ( .body | keys | contains([\"channel\",\"icon_emoji\",\"icon_url\",\"username\",\"link_names\",\"text\",\"attachments\"]) ) and
-  ( .body | keys | length ==  7 )"
+  ( .body | keys | contains([\"icon_emoji\",\"icon_url\",\"username\",\"link_names\",\"text\",\"attachments\"]) ) and
+  ( .body | keys | length ==  6 )"
 
 
 test combined_text_template_and_file_missing | jq -e "
   .webhook_url == $(echo $webhook_url | jq -R .) and
-  .body.channel == null and
   .body.icon_url == null and
   .body.icon_emoji == null and
   .body.link_names == false and
   .body.username == $(echo $username | jq -R .) and
   .body.text == \"${base_text}\n${missing_text}\n\" and
   .body.attachments == null and
-  ( .body | keys | contains([\"channel\",\"icon_emoji\",\"icon_url\",\"username\",\"link_names\",\"text\",\"attachments\"]) ) and
-  ( .body | keys | length ==  7 )"
+  ( .body | keys | contains([\"icon_emoji\",\"icon_url\",\"username\",\"link_names\",\"text\",\"attachments\"]) ) and
+  ( .body | keys | length ==  6 )"
 
 test text | jq -e "
   .webhook_url == $(echo $webhook_url | jq -R .) and
-  .body.channel == null and
   .body.icon_url == null and
   .body.icon_emoji == null and
   .body.link_names == false and
   .body.username == $(echo $username | jq -R .) and
   .body.text == \"Inline static \`text\`\n\" and
   .body.attachments == null and
-  ( .body | keys | contains([\"channel\",\"icon_emoji\",\"icon_url\",\"username\",\"link_names\",\"text\",\"attachments\"]) ) and
-  ( .body | keys | length ==  7 )"
+  ( .body | keys | contains([\"icon_emoji\",\"icon_url\",\"username\",\"link_names\",\"text\",\"attachments\"]) ) and
+  ( .body | keys | length ==  6 )"
 
 test text_file | jq -e "
   .webhook_url == $(echo $webhook_url | jq -R .) and
-  .body.channel == null and
   .body.icon_url == null and
   .body.icon_emoji == null and
   .body.link_names == false and
   .body.username == $(echo $username | jq -R .) and
   .body.text == \"${sample_text}\" and
   .body.attachments == null and
-  ( .body | keys | contains([\"channel\",\"icon_emoji\",\"icon_url\",\"username\",\"link_names\",\"text\",\"attachments\"]) ) and
-  ( .body | keys | length ==  7 )"
+  ( .body | keys | contains([\"icon_emoji\",\"icon_url\",\"username\",\"link_names\",\"text\",\"attachments\"]) ) and
+  ( .body | keys | length ==  6 )"
 
 test text_file_empty | jq -e "
   .webhook_url == $(echo $webhook_url | jq -R .) and
-  .body.channel == null and
   .body.icon_url == null and
   .body.icon_emoji == null and
   .body.link_names == false and
   .body.username == $(echo $username | jq -R .) and
   .body.text == \"${missing_text}\n\" and
   .body.attachments == null and
-  ( .body | keys | contains([\"channel\",\"icon_emoji\",\"icon_url\",\"username\",\"link_names\",\"text\",\"attachments\"]) ) and
-  ( .body | keys | length ==  7 )"
+  ( .body | keys | contains([\"icon_emoji\",\"icon_url\",\"username\",\"link_names\",\"text\",\"attachments\"]) ) and
+  ( .body | keys | length ==  6 )"
 
 test text_file_empty_suppress | jq -e "
   ( . | keys | length == 1 ) and
@@ -128,25 +124,25 @@ test text_file_empty_suppress | jq -e "
   ( .version | keys == [\"timestamp\"] )"
 
 test metadata | jq -e "
-  ( .version | keys == [\"timestamp\"] )        and
-  ( .metadata[0].name == \"url\" )              and ( .metadata[0].value == \"https://hooks.slack.com/services/TH…IS/DO…ES/WO…RK\" ) and
-  ( .metadata[1].name == \"channel\" )          and ( .metadata[1].value == \"#some_channel\" ) and
-  ( .metadata[2].name == \"username\" )         and ( .metadata[2].value == \"concourse\" ) and
-  ( .metadata[3].name == \"text\" )             and ( .metadata[3].value == \"Inline static text\n\" ) and
-  ( .metadata[4].name == \"text_file\" )        and ( .metadata[4].value == \"\" ) and
-  ( .metadata[5].name == \"text_file_exists\" ) and ( .metadata[5].value == \"No\" )  and
-  ( .metadata | length == 7 )"
+  ( .version | keys == [\"timestamp\"] )         and
+  ( .metadata[0].name == \"url\" )               and ( .metadata[0].value == \"https://hooks.slack.com/services/TH…IS/DO…ES/WO…RK\" ) and
+  ( .metadata[1].name == \"username\" )          and ( .metadata[1].value == \"concourse\" ) and
+  ( .metadata[2].name == \"text\" )              and ( .metadata[2].value == \"Inline static text\n\" ) and
+  ( .metadata[3].name == \"text_file\" )         and ( .metadata[3].value == \"\" ) and
+  ( .metadata[4].name == \"text_file_exists\" )  and ( .metadata[4].value == \"No\" )  and
+  ( .metadata[5].name == \"text_file_content\" ) and ( .metadata[5].value == \"_(no notification provided)_\\n\" )  and
+  ( .metadata | length == 6 )"
 
 test metadata_with_payload | jq -e "
-  ( .version | keys == [\"timestamp\"] )        and
-  ( .metadata[0].name == \"url\" )              and ( .metadata[0].value == \"https://hooks.slack.com/services/TH…IS/DO…ES/WO…RK\" ) and
-  ( .metadata[1].name == \"channel\" )          and ( .metadata[1].value == \"#some_channel\" ) and
-  ( .metadata[2].name == \"username\" )         and ( .metadata[2].value == \"concourse\" ) and
-  ( .metadata[3].name == \"text\" )             and ( .metadata[3].value == \"Inline static text\n\" ) and
-  ( .metadata[4].name == \"text_file\" )        and ( .metadata[4].value == \"\" ) and
-  ( .metadata[5].name == \"text_file_exists\" ) and ( .metadata[5].value == \"No\" )  and
-  ( .metadata[7].name == \"payload\" )          and ( .metadata[7].value | fromjson.source.url == \"***REDACTED***\" ) and
-  ( .metadata | length == 8 )"
+  ( .version | keys == [\"timestamp\"] )         and
+  ( .metadata[0].name == \"url\" )               and ( .metadata[0].value == \"https://hooks.slack.com/services/TH…IS/DO…ES/WO…RK\" ) and
+  ( .metadata[1].name == \"username\" )          and ( .metadata[1].value == \"concourse\" ) and
+  ( .metadata[2].name == \"text\" )              and ( .metadata[2].value == \"Inline static text\n\" ) and
+  ( .metadata[3].name == \"text_file\" )         and ( .metadata[3].value == \"\" ) and
+  ( .metadata[4].name == \"text_file_exists\" )  and ( .metadata[4].value == \"No\" )  and
+  ( .metadata[5].name == \"text_file_content\" ) and ( .metadata[5].value == \"_(no notification provided)_\\n\" )  and
+  ( .metadata[6].name == \"payload\" )           and ( .metadata[6].value | fromjson.source.url == \"***REDACTED***\" ) and
+  ( .metadata | length == 7 )"
 
 test attachments_no_text | jq -e "
   .body.text == null and
@@ -184,18 +180,6 @@ test no_attachments_with_text_and_attachments_file | jq -e "
   .body.attachments[0].text == \"Build my-build passed!\" and
   ( .body.attachments | length == 1 )"
 
-test multiple_channels | jq -e "
-  .webhook_url == $(echo $webhook_url | jq -R .) and
-  .body.channel == \"#another_channel\" and
-  .body.icon_url == null and
-  .body.icon_emoji == null and
-  .body.link_names == false and
-  .body.username == $(echo $username | jq -R .) and
-  .body.text == \"Inline static text\n\" and
-  ( .body | keys | contains([\"attachments\", \"channel\",\"icon_emoji\",\"icon_url\",\"username\",\"link_names\",\"text\"]) ) and
-  ( .body | keys | length ==  7 ) and
-  .body.attachments == null"
-
 test env_file | jq -e "
   .body.text == \"Inline static text\n\" and
   .body.attachments[0].color == \"danger\" and
diff --git a/test/metadata.out b/test/metadata.out
index f7d7a4a..049016e 100644
--- a/test/metadata.out
+++ b/test/metadata.out
@@ -2,7 +2,6 @@
   "params": {
     "text":     "Inline static text",
     "username": "concourse",
-    "channel":  "#some_channel",
     "debug":    "true",
     "metadata": "true"
   },
diff --git a/test/multiple_channels.out b/test/multiple_channels.out
deleted file mode 100644
index 8182ca8..0000000
--- a/test/multiple_channels.out
+++ /dev/null
@@ -1,11 +0,0 @@
-{
-  "params": {
-    "text": "Inline static text",
-    "username": "concourse",
-    "debug": "true",
-    "channel": "#some_channel #another_channel"
-  },
-  "source": {
-    "url": "https://some.url"
-  }
-}