How to check/change the size limit of file attachment in Finance Document. Eg: PO (ME21N), Journal (FV50). Which table is store these attachments?

Hi,

I would like to know the size restriction on the attachment in a PO/Journal and any restriction in the number of files that can be attached in each PO/journal?

How can i check?

Is there any impact on system performance in general? Which table is stored the attachment files?

Kindly advice,

Thanks,

Thomas