You can set a custom numbering format only for documents created by this app. Note that invoices created from a previous proforma will use the proforma’s numbering. You can use these merge tags:
If neither an Order Number nor an Order ID is used, the numbering will not be unique, which may lead to errors. Therefore, it is essential to include at least one of these identifiers
{{order_number}} - Order Number
It is the numbering that Shopify generates automatically.
For example 1234
{{order_id}} - Order ID
It is the ID that Shopify generates automatically based. You can add PREFIX and SUFFIX, and between them, there is Order Number. Format: PREFIX + Order Number + SUFFIX
For example: BB1234HELLO
You can edit that within Shopify Admin » Settings » General » Order ID section
{{yyyy}} - 4-digit year
Based on the exact timestamp of the creation. For example: 2023
{{yy}} - 2-digit year
Based on the exact timestamp of the creation. For example: 23
{{mm}} - 2-digit month
Based on the exact timestamp of the creation. For example: 03
{{dd}} - 2-digit day
Based on the exact timestamp of the creation. For example: 31
If left blank, your Fakturownia default settings will be applied.