The buyer, identified by a GLN.
slsrpt_Examples
<buyer gln="1111111111111"> slsrpt_XPATH
/b24Message/salesReport/buyer/@gln
slsrpt_Required
Yes
slsrpt_Type
Number
slsrpt_Limits
Must be a valid EAN13 GLN
slsrpt_Sort
1600
Id
7