# IF AND Nested Formula Help

#### iando99

##### New Member
Hi Guys & Gurls

thanks for reading this, I'm having a few issues with a current spreadsheet I'm working on, its designed to track inspection frequencies, it was all working fine until the client decided they wanted to track two different industry requirements

its set out like this

Cell A1 has the asset build date or 'ground zero' if you like - 01/01/1991

Cell H7 has the client requirement for inspection in days - 365 (every year they'll inspect it)

Cell G7 has the industry best practice for inspection in days - 730 (every 2 years they'll inspect it)

Cell O7 has the Certificate of Conformity date in it - 1/1/10 - (date the asset was built)

Cell P7 has the following formula - =IF(H7="",\$A\$1,MAX(O7,\$A\$1))

Cell Q7 is where we record the last inspection date if the client has documentation

Cell S7 is where i'm stuck, it currently reads =IF(H7="","",MAX(Q7,P7)+H7) to give me the date they must next inspect the item, however what i need it to do is

IF H7 is blank use G7
IF BOTH H7 & G7 are blank stay blank

if H7 is used the end of the formula needs to read MAX(Q7,P7)+H7)
if G7 is used it needs to read MAX(Q7,P7)+G7)

hope someone can help, I'm not opposed to hidden cells to do part of the equation if that's the best way around it

#### Snakehips

##### Well-known Member
Ian,

If I understand correctly then try...

=IF(AND(H7="",G7=""),"",IF(H7="",MAX(Q7,P7)+G7,MAX(Q7,P7)+H7))

Hope that helps.

#### iando99

##### New Member
sorry forgot to mention I'm using Excel 2010

#### iando99

##### New Member
Snakehips you rock! thank you so much that works a charm!

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