We already have in-house CRM system,only tags with open API or can be updated through dashboa
As well known , Sertag is a professional electronic shelf labels manufacturers.
Sertag cannot only provide the whole electronic shelf labels system ,but also can provide API interface , SDK datapackage (middleware) for system integrator.
Sertag electronic shelf labels system can interface with your CRM system.
Hope the following documents are helpful to you