Spanish to English Bus/Financial Business/Commerce (general)

These two terms appear frequently in an agency contract I'm translating, at times in a confusing fashion. e.g. "El agente se obliga a recibir en nombre de XXXX y a transmitirle a ésta, toda clase de reclamaciones de terceros sobre defectos o vicios de calidad o cantidad de los bienes vendidos y de los servicios prestados como consecuencia de las operaciones promovidas, aunque no se hubiesen concluido"
Would it be simply "enter" and "conclude" an operation?
My main headache comes from the expression "close a deal", which is to "make a deal", but not necessarily to "conclude" it.
All suggestions appreciated. Thanks.