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Your customer directory is who you sell to. Your vendor directory is who you buy from. Both are worth building properly — a good directory turns invoicing from data entry into a few clicks.

Adding a customer

1

Open Sales, then Customers

Choose New customer.
2

Enter their identity

3

Enter contact details

Primary contact name, email, phone. The email is where invoices are sent, so use the one that actually pays bills — often accounts@, not the person you deal with day to day.
4

Enter addresses

Billing address, and a shipping address if it differs. Both can appear on the invoice.
5

Set payment terms

Their default due date. This overrides your global default for this customer.
6

Set a credit limit if you want one

Optional. Useful for customers with a habit of stretching.
7

Save

They are now selectable on any invoice, quote or credit note.
For business customers, collect the TPIN when you open the account, not when you first need it. Chasing a TPIN to transmit an invoice to ZRA is a conversation nobody enjoys.

Adding a vendor

Vendors work the same way, with two additions that matter:

Keeping the directory clean

A directory with three entries for the same customer produces three statements, none of which is right.

Customer statements

A statement lists every transaction with one customer and shows what is outstanding. It is the single most effective collection tool you have.
1

Open the customer

From Sales → Customers.
2

Choose Statement

Set the period you want covered.
3

Review it

Invoices, credit notes, payments and the running balance, with aging.
4

Send it

Download as PDF, or email directly to the customer.
Sending statements monthly to every customer with a balance is more effective than chasing individual invoices. It is also harder to argue with — the customer sees the whole position.

Aging

Aging groups what a customer owes by how late it is: The aging report shows this across all customers at once.

Vendor statements

The same in reverse: every transaction with one vendor, and what you owe. Use these to reconcile against the vendor’s own statement before paying — it is the reliable way to catch a bill you were invoiced twice for, or a credit note the vendor never applied.

Customer and vendor history

Open any customer or vendor to see:

Practical habits

  • Set terms per customer. A customer who always pays in 45 days should have 45-day terms, so your aging report reflects reality.
  • Send statements on a fixed day. The first working day of each month, without exception.
  • Act at 30 days, not 90. Debt recovery rates fall sharply with age.
  • Record what you promised. If a customer commits to paying on a date, note it on the invoice so the next person chasing knows.
Last modified on August 4, 2026