For each step of an instance the previous step that activated it can be determined. The connection to the previous step is established through the workflow ID. To determine the workflow ID of the previous step, this function can be used.
Parameter |
Type |
Description |
|---|---|---|
- |
- |
- |
The function returns the workflow ID of the previous step.
In case the current step is a starting step within the instance, the value 00000000000000000000000000000000 (meaning a character string consisting of 32 zeros) is returned.
Example:
…
$backlink = $this->getBacklink();
…
