FM Document does not have any Payment as Value Type (Document already payed)

Hi All.

I really need you help on this issue.

I have PSM configured in my SAP system and everything moves over Commitments Item.

Actually, I have this issue.

When I create a PO and I do the GR for that PO and the IR for that GR, the IR document has some documents, one of them is "Funds Management doc".

At this moment, everything is correct, but if I check the document, I see this:

but, I am expecting see +/- for each of the items on this IR document. Something like this.

Sometime the system does this and some reasons it is not doing this.

While running GR55, I have some amount as no payed, but in SAP this is already payed.

Can some of you guide me to understand what this happening here?, why SAP works normally and why sometimes is not working?

Appreciate your help on this.

Regards,

Jesus Martinez