When to use this endpoint

Use the unlink control in the task/job linked-items list. This does not delete the task or job.

Authentication and permissions

Signed API-key authentication or a logged-in CRM session is required. The handler uses the authenticated tenant and has no additional role/page check.

The dispatcher also applies user/account and IP restrictions. CRM sessions carrying a CSRF token must supply X-FMCSRF or _csrf; missing or incorrect tokens can be rejected before the handler runs.

Parameters

ParameterTypeRequiredDescription
job_idInteger stringYesPositive physical job ID; missing/deleted objects do not prevent removing a retained link.
task_idInteger stringYesPositive task ID; missing/deleted objects do not prevent removing a retained link.

Example request

$result = FM_api('Job_taskUnlink', [
	'job_id' => '1042',
	'task_id' => '703',
]);

Example response

{"ok":1}

Errors and unusual responses

ResponseCondition
{"error":"not logged in"}No authenticated tenant context is available. Invalid signed credentials can be rejected by the dispatcher before the handler runs.
{"error":"missing or invalid parameter: job_id"}Missing/nonpositive job ID; task_id has analogous guard.
{"error":"Unable to save job delivery changes"}A checked database write, audit or transaction failed; local transactional writes roll back. Cross-tenant files/commits are not distributed-atomic.

Legacy application errors may be returned with HTTP 200. Check the decoded response for error, not only the HTTP status.

Behaviour and edge cases

  • Deletes all type-8 relations for the exact from_id/to_id pair in the authenticated tenant. A missing pair still returns ok.
  • Locks all matching link IDs and records every removed ID through Core_logDeletion, including duplicate legacy pairs. Link removal and audits commit together.
  • Active object state/status/assignment is not required to remove a retained relation. The job/task rows are locked when present; removal and every audit are checked and transactional. No paging applies.

Side effects

  • Physically removes association rows, not the business objects. Records a tenant manymany deletion when a link ID was found so mobile sync can remove it.
  • No explicit job/task history, object edit timestamp, cached-field recalculation or mail is performed.

See it in Fieldmotion

CRM1

Unlink from a job’s linked task or Tasks/task edit linked-job list. pageJob/pageTasks/pageTaskEdit call Job_taskUnlink with the pair.

CRM2

Use unlink in the task/job linking widgets or Tasks module; widgetJobToTaskLink/widgetTaskToJobLink and moduleTasks call Job_taskUnlink.

Related endpoints