Link PO Line Items to Source Records

This is an official request to have an ability to link each item in a Purchase Order (PO) to its source, such as:

Problem:
They often combine multiple requirements into a single PO (to meet supplier minimums), but once created, there’s no visibility on which item belongs to which job/customer. This creates confusion during receiving (GRN).

Example:
Single PO may include:

Currently, all items appear the same with no reference.

Expected Solution:
Allow line-level tagging/linking in PO, where each item can have:

Impact:
Helps identify what each part is for when stock arrives → faster processing, fewer errors.