If you are not able to create an incoming collaboration link from a friend application to Jira project, check whether this project was recently created; if it was, follow the next steps to check whether its edit issues screen was associated to the Collaboration Links field:
JIRA ADMINISTRATION(gear) icon at the top-right corner.
Custom fieldsoption on the left panel under the
Collaboration Linksfield in table and click on the gear icon at the end of the row.
Associate field Collaboration Links to screenspage, you need to make sure the edit/view screen of your project is selected. Selection is done by clicking on the checkbox located in the