Excuse me, could you clarify what you mean by "SRM in purchase"? Are you referring to a specific cryptocurrency or token known as SRM, and how it relates to the process of making a purchase? If so, SRM could potentially stand for a variety of things depending on the context. It's important to note that in the cryptocurrency space, abbreviations and acronyms are often used to represent different tokens, projects, or platforms.
Assuming SRM is a cryptocurrency or token, in the context of a purchase, it could mean that you are using SRM as a form of payment or exchange to acquire goods or services. For instance, if you are shopping at an online store that accepts SRM as a payment method, you would be making a purchase using SRM.
However, without more context, it's difficult to give a definitive answer. If you could provide more information about SRM or the specific context in which you encountered the term, I might be able to give a more accurate description.