Isblank or [field] = ""

I have a mysql db and check if the field is empty, but in the formula the field validation does not work.
when the data_col field is done, the status field is being filled in as โ€œColetadoโ€

IF([ped_fechado]=โ€œPedido Duplicadoโ€,โ€œPedido Duplicadoโ€,
IF([ped_fechado]=โ€œCanceladoโ€,โ€œCanceladoโ€,
IF([ped_fechado]=โ€œNรฃo Utilizadoโ€,โ€œNรฃo Utilizadoโ€,
IF(ISBLANK([nf_venda]),
IF([tipo_ped]=โ€œFaturamentoโ€,โ€œEntregueโ€,
IF(ISBLANK([data_col]),
IF(ISBLANK([data_ent]),
IF([liberacao]=โ€œOKโ€,โ€œLiberadoโ€,
IF([status_mat]=โ€œPendenteโ€,โ€œMaterial pendenteโ€,
IF([status_mat]=โ€œEm Substituiรงรฃoโ€,โ€œEm Substituiรงรฃoโ€,
IF([status_mat]=โ€œReservadoโ€,โ€œReservadoโ€,โ€œPendenteโ€ ))))
,โ€œEntregueโ€)
,โ€œColetadoโ€)),
โ€œFaturadoโ€))))

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2 REPLIES 2

Steve
Platinum 4
Platinum 4

What is your question?

I am using the isblank command, but the app is not considering

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