project P_FPGA store a module FPGA that has link to a module PRODUCT in another projet called P_PRODUCT.

P_PRODUCT is not stored in P_FPGA.

is it possible to archive P_FPGA and then restore it and restore also the link between FPGA and PRODUCT ?

I tried but links disappear. What happen ?

In order to preserve links, you must archive a project that has the source, target, and link modules.

In your setup, does P_FPGA and P_PRODUCT share a common parent project? If so, try archiving that parent project.

thanks, yes there are but there will be too much modules to archive then. is there a way to archive and filter modules to archive (like in the restore process) ?

This product forum is intended for client to client collaboration.

If you want to engage IBM Support, you should open a support case:

https://www.ibm.com/mysupport/s/createrecord/NewCase

Yes, during the restore process there is a dialog that allows you to select which items in the archive you want restored.

One possibility would be to mirror the outgoing links in FPGA to a text attribute, before you archive it. Then after restore you can "link by attribute" to recreate the links