The Revenue Project ID field (Project management and accounting → All projects → Project → Revenue recognition) is designed to give flexibility in how revenue is recognized. When several sub‑projects roll up under a parent project, assigning the parent’s Revenue Project ID to each sub‑project allows the system to combine revenue recognition entries across all those related projects.

If each sub‑project uses its own Revenue Project ID, running revenue recognition will consume only one number from the voucher number sequence.

However, when multiple projects share the same Revenue Project ID, the revenue recognition process consumes voucher numbers based on the number of projects included under that Revenue Project ID.

Example:

If the current voucher number is PPV_0015, and you have 15 sub‑projects all mapped to the same parent Revenue Project ID, posting revenue recognition will generate vouchers up to PPV_0030.

It would be very helpful if the system provided a way to track which voucher numbers were consumed during this process, or an option to prevent this kind of voucher number “skipping” from occurring.