filtering multiple items

[dw700d]

I have a list of over 5,000 Purchase order numbers. Each Purchase order can have a variety of different account codes attached to it. There are 14 account codes. I would like to Identify Purchase orders that only have one account code and that one  account code needs to be(6000, 6100 or 6200). For Example in the table below  Purchase order 3 and 7  would qualify as a purchase order with 1 account code where the code equals one 6000,6100 or 6200. I would also like the ability to Identify purchase orders that contain account code (6000, 6100 or 6200) and any combination of the other 11 account codes. So for example Purchase order 1,2 and 4 are examples of purchase orders that contains account code (6000,6100, or 6200) and any combination of the other 11 accounts.

Purchase Order No	Acct Cd	Sum of Amt
1	2100	9624.26
1	2200	14209.52
1	6000	9001.25
2	6100	3624.93
2	2200	26953.98
3	6200	1750.5
4	6000	1425.67
4	2200	35491.18
4	2400	2450.15
5	6000	40.5
6	2200	12901.04
6	2400	4593.94
6	2500	833.9
7	6000	200
8	2400	486.39

[#2 · Accepted solution]

@dw700d 

See the attached sample workbook.

[#3]

Thank you Hans this helps a great deal. The accounts codes are actually 6121.219M, 6231.167M ,6722.99,6726.99. I am experiencing challenges trying to replicate your formula for type 2. Are you able to rewrite the formula for me with the account codes below
6121.219M
6231.167M
6722.99
6726.99

Thank you for your help

[#4]

@dw700d 

Are the latter two text values or number values?

[#5]

all four values are considered text

[#6]

@dw700d 

Thank you. The formula in D2 becomes

=AND(COUNTIF($A$2:$A$16,$A2)=1,OR(B2={"6121.219M","6231.167M","6722.99","6726.99"}))

and that in E2:

=SUM(COUNTIFS($A$2:$A$16,$A2,$B$2:$B$16,{"6121.219M","6231.167M","6722.99","6726.99"}))*COUNTIFS($A$2:$A$16,$A2,$B$2:$B$16,"<>6121.219M",$B$2:$B$16,"<>6231.167M",$B$2:$B$16,"<>6722.99",$B$2:$B$16,"<>6726.99")>0