Configure QCMM Billing Numbering

QCMM uses one global billing-number sequence for membership billing and standalone invoices. Configure the prefix, optional date segment, next sequence value, and zero-padding before issuing production records.

Number Format

Billing numbers are built from an uppercase alphanumeric prefix, an optional site-time-zone date in YYYYMMDD form, and a zero-padded numeric sequence separated by hyphens. The prefix accepts 1–16 letters or numbers.

Next Number and Padding

The next sequence must contain 1–12 digits and be between 1 and 999999999999. Leading zeros are allowed and influence the stored padding. QCMM will not let the next number move behind or equal the last issued sequence, and an existing billing number is never intentionally reused.

Preview Before Saving

Use the numbering preview to verify the exact next billing number. If the preview already exists, choose a higher next sequence. The sequence is protected transactionally so concurrent billing creation cannot safely issue the same number twice.

One Sequence for All Billing

Standalone invoices reserve from the same immutable sequence used by subscription billing. Do not maintain a second manual numbering counter for standalone invoices.

Community Discussion

Want to compare QCMM workflows or discuss how other Joomla site owners use this feature? Visit the QC Memberships & Meetings Community. For private support, account-specific entitlement or billing issues, or bug reports, use the QuantaCade support system.