Hi guys,I am having a mental blank on how to do the criteria in my query for Combo Boxes. This is a database built by someone else but I need to change the criteria as it currently doesn’t do anything if you select a Site.I have 2 combo boxes Combo14 (Supplier) and Combo16 (Site) and I need the query to run when either scenario is selected. I can get it to work if they select a Supplier and a Site but it wont work if they choose just the ‘Supplier’, it brings back no records.I know I have to do the next line of criteria (OR) but It doesn’t work every time I try it…..Can someone please help me out and maybe point out what Im doing wrong or what I need to write?I have copied the SQL for the query, but I don’t know how to write SQL so I am do it in Design View.This is the criteria that works if they select Supplier and Site, I just dont know what I need to add if they just choose 'Supplier'Hope this makes sense and someone can show me what Im doing wrong?!Thanks in advance.Code:SELECT [CIR Component Query].[qryOranisation with parent orgs].dbo_tblExternalOrg_1.OrganisationName, [CIR Component Query].CIRID, [CIR Component Query].LocationName, [CIR Component Query].definiton, [CIR Component Query].SPParmName, [CIR Component Query].IssueDetail, [CIR Component Query].RaisedByPerson, [CIR Component Query].WorkAreaDescription, [CIR Component Query].ContactPerson, [CIR Component Query].IssuePriorityDesc, [CIR Component Query].dbo_tblExternalOrg.OrganisationName, [CIR Component Query].FaultTypeID, [CIR Component Query].FaultTypeExtraText, [CIR Component Query].CauseDetail, [CIR Component Query].ActionDetail, [CIR Component Query].ProgressComments, [CIR Component Query].IssueDateFROM [CIR Component Query]WHERE ((([CIR Component Query].[qryOranisation with parent orgs].dbo_tblExternalOrg_1.OrganisationName)=[Forms]![Switchboard]![Combo14]) AND (([CIR Component Query].LocationName)=[Forms]![Switchboard]![Combo16]) AND (([CIR Component Query].SPParmName)="Critical Defect" Or ([CIR Component Query].SPParmName)="Major Defect" Or ([CIR Component Query].SPParmName)="Minor Defect" Or ([CIR Component Query].SPParmName)="Delivery IFOT" Or ([CIR Component Query].SPParmName)="CIR Response") AND (([CIR Component Query].IssueDate) Between [Forms]![Switchboard]![Calendar2] And [Forms]![Switchboard]![Calendar3]) AND (([CIR Component Query].Region)="BCSN"))ORDER BY [CIR Component Query].[qryOranisation with parent orgs].dbo_tblExternalOrg_1.OrganisationName DESC , [CIR Component Query].IssueDate;