Pay by Link Developer Guide {#paybylink}
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26.08.01
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![](/content/dam/documentation/cybs/en-us/topics/reference/notes/doc-relnotes/images/new-15x75.svg/jcr:content/renditions/original) Added support for custom fields when creating a payment link. See [Create a New Link with Custom Fields](https://developer.cybersource.com/docs/cybs/en-us/paybylink/developer/all/rest/paybylink/paybylink-services/paybylink-create-link-custom-fields-intro.md "").  
![](/content/dam/documentation/cybs/en-us/topics/reference/notes/doc-relnotes/images/new-15x75.svg/jcr:content/renditions/original) Added support for default custom fields that apply automatically to new payment links. See [Create Default Custom Fields](https://developer.cybersource.com/docs/cybs/en-us/paybylink/developer/all/rest/paybylink/paybylink-services/paybylink-default-fields-intro.md "").  
![](/content/dam/documentation/cybs/en-us/topics/reference/notes/doc-relnotes/images/new-15x75.svg/jcr:content/renditions/original) Added optional fields for discounts and taxes and transaction reference numbers when creating fixed-priced links. See [Create a Fixed-Price Link](https://developer.cybersource.com/docs/cybs/en-us/paybylink/developer/all/rest/paybylink/paybylink-services/paybylink-create-intro.md "").